MOSDR13087C

MOV-301-02-004-103C

Movcam

The Movcam 130:87mm Step-Down Ring for Clamp-On MatteBoxes lets you mount 87mm lenses onto 130mm clamp-on matteboxes -- the kinds without a thread on their rear adapter. The ring is split along a point of its diameter to flexibly widen and mount a mattebox. (A locking pin on the side of the mattebox securely tightens the ring in place.)